I know it doesn't appear to be "anti-theft" but let me assure you that it is. It has a special hidden zipper design that makes it for someone to open while you are wearing it. On top of that this backpack is made of a splash resistant material so all belongings are protected while inside. I'm still not done yet though because it has a built in USB port for phone charging on the go. This backpack pretty much has it all!
Built in charging port
Large storage area in a sleek design
Product Type: Backpack
Materials: Primarily Polyester
Dimensions: 11.8 x 5.5 x 17.3 inches / 19L storage volume